445425520 has 20 divisors (see below), whose sum is σ = 1035614520. Its totient is φ = 178170176.

The previous prime is 445425503. The next prime is 445425527. The reversal of 445425520 is 25524544.

It is a tau number, because it is divible by the number of its divisors (20).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (445425527) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 2783830 + ... + 2783989.

It is an arithmetic number, because the mean of its divisors is an integer number (51780726).

Almost surely, 2^445425520 is an apocalyptic number.

445425520 is a gapful number since it is divisible by the number (40) formed by its first and last digit.

It is an amenable number.

445425520 is an abundant number, since it is smaller than the sum of its proper divisors (590189000).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

445425520 is a wasteful number, since it uses less digits than its factorization.

445425520 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 5567832 (or 5567826 counting only the distinct ones).

The product of its (nonzero) digits is 32000, while the sum is 31.

The square root of 445425520 is about 21105.1064910841. The cubic root of 445425520 is about 763.7039412813.

The spelling of 445425520 in words is "four hundred forty-five million, four hundred twenty-five thousand, five hundred twenty".